P5 - Distance-Time And Velocity-Time Graphs Flashcards
When can an object be plotted on a distance-time graph?
If it moves in a straight lime
In a distance-time graph what does the gradient show?
The steeper the graph, the faster it’s going
This is because speed = distance / time
= (change in vertical axis + (charge in horizontal axis).
In a distance-time graph what does the flat sections show?
Flat sections are where its stationary - is stopped
In a distance-time graph what do straight uphill sections show?
It is travelling at a steady speed
In a distance-time graph what do straight curves show
Acceleration or deceleration
In a distance-time graph what does a steepening curve show?
It’s speeding up as its increasing its gradient
In a distance-time graph what does a levelling off curve show?
It is slowing down
How do you find the speed at a point in a distance-time graph?
By finding the gradient or tangent to the curve at that point
How can you show when an objects velocity change?
On a velocity-time graph
In a velocity-time graph what does the gradient show?
Acceleration
(Since acceleration is the change in velocity/time)
In a velocity-time graph what do flat sections show?
The object is travelling at a steady speed
In a velocity-time graph what does the steeper the graph show?
The greater the acceleration or deceleration
In a velocity-time graph what does uphill sections (/) show?
The aceleration
In a velocity-time graph what does downhill sections() show?
Deceleration
In a velocity-time graph what does a curve show?
The object is changing acceleration
